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Fertility & birth rates in Sierra Leone and United States

Updated on by Georank team

Sierra Leone has an annual birth rate of 30.6 births per 1,000 people, compared to 10.7 for the United States. The average number of children a woman is expected to have during her lifetime — the fertility rate, is 3.79 in Sierra Leone and 1.62 in the United States — 57.4% difference.

1960 vs 2023, the fertility rate has decreased by 38.6% in Sierra Leone and by 55.8% in the United States — in 1960, it was 6.18 and 3.65, respectively.

  • Sierra Leone is ranked 29/196 by birth rate compared to 140/196 for the United States.
  • The mean age for first-time mothers is 19.6 years in Sierra Leone, compared to 27.3 years in the United States.
  • The mean age at childbearing (for all the births, not just the first) is 28.5 in Sierra Leone — it's 30.2 in the United States.
  • Annual births per 1,000 women ages 15-19 (adolescent birth rate or teenage mother rate) is 93.6 in Sierra Leone vs 13.1 in the United States.
  • In Sierra Leone, 25.4% of the population is composed of women of reproductive age (15-49), compared to 22.5% in the United States.

Fertility rate in Sierra Leone vs United States by year

Sierra Leone
United States
1x
Year Fertility rate
Sierra Leone United States
2023 3.79 1.62
2022 3.88 1.66
2021 3.98 1.66
2020 4.08 1.64
2019 4.19 1.71
2018 4.29 1.73
2017 4.39 1.77
2016 4.47 1.82
2015 4.55 1.84
2014 4.7 1.86
2013 4.87 1.86
2012 5.06 1.88
2011 5.21 1.89
2010 5.33 1.93
2009 5.45 2
2008 5.56 2.07
2007 5.64 2.12
2006 5.74 2.11
2005 5.81 2.06
2004 5.92 2.05
2003 6.09 2.05
2002 6.23 2.02
2001 6.31 2.03
2000 6.36 2.06
1999 6.42 2.01
1998 6.5 2
1997 6.53 1.97
1996 6.55 1.98
1995 6.56 1.98
1994 6.56 2
1993 6.57 2.02
1992 6.56 2.05
1991 6.55 2.06
1990 6.57 2.08
1989 6.57 2.01
1988 6.59 1.93
1987 6.61 1.87
1986 6.6 1.84
1985 6.59 1.84
1984 6.59 1.81
1983 6.57 1.8
1982 6.56 1.83
1981 6.55 1.81
1980 6.56 1.84
1979 6.58 1.81
1978 6.59 1.76
1977 6.57 1.79
1976 6.55 1.74
1975 6.55 1.77
1974 6.53 1.84
1973 6.47 1.88
1972 6.45 2.01
1971 6.43 2.27
1970 6.41 2.48
1969 6.39 2.46
1968 6.39 2.46
1967 6.38 2.56
1966 6.35 2.72
1965 6.31 2.91
1964 6.29 3.19
1963 6.26 3.32
1962 6.22 3.46
1961 6.21 3.62
1960 6.18 3.65

Data sources: World Bank | Health (1960–2023, retrieved 2026-04-06).

GeoRank.org/birth-rate/sierra-leone/united-states | CC BY

According to the latest available data on birth rates, the fertility rate in Sierra Leone was 3.79 children per woman in 2023, compared to 1.62 in the United States in 2023. The replacement level is considered to be 2.1 children per woman.

Check Sierra Leone vs the United States population clock for a dynamic visualization of the changing population.

Natural population change by year

Sierra Leone
United States
1x
Year Natural population change
Sierra Leone United States
2023 188,788 502,372
2022 186,625 399,926
2021 183,326 199,137
2020 181,015 208,862
2019 181,068 887,476
2018 178,772 955,022
2017 173,259 1,028,037
2016 168,784 1,197,627
2015 162,275 1,270,126
2014 160,137 1,357,281
2013 161,265 1,322,711
2012 160,915 1,411,822
2011 158,858 1,441,697
2010 155,338 1,548,182
2009 152,669 1,717,920
2008 149,855 1,794,154
2007 145,740 1,897,757
2006 144,127 1,849,955
2005 137,234 1,684,445
2004 132,661 1,698,271
2003 130,312 1,653,615
2002 126,429 1,581,938
2001 116,647 1,595,826
2000 110,754 1,664,758
1999 102,295 1,564,050
1998 103,906 1,573,857
1997 105,433 1,501,014
1996 104,140 1,510,137
1995 100,885 1,546,031
1994 101,486 1,633,302
1993 103,317 1,717,685
1992 103,251 1,875,328
1991 105,477 1,926,543
1990 100,778 2,026,068
1989 98,298 1,875,826
1988 96,344 1,735,943
1987 94,235 1,720,252
1986 90,902 1,656,917
1985 88,869 1,689,258
1984 87,072 1,627,192
1983 84,628 1,636,544
1982 82,457 1,714,317
1981 80,111 1,652,153
1980 77,932 1,608,450
1979 75,992 1,597,894
1978 74,130 1,402,283
1977 71,663 1,431,556
1976 69,506 1,264,604
1975 67,560 1,252,644
1974 65,357 1,218,968
1973 62,443 1,165,499
1972 60,279 1,301,355
1971 58,484 1,640,519
1970 56,513 1,824,965
1969 54,768 1,702,487
1968 53,126 1,565,507
1967 51,734 1,669,181
1966 49,486 1,749,387
1965 47,223 1,943,030
1964 45,487 2,245,099
1963 43,569 2,289,826
1962 41,603 2,406,337
1961 40,022 2,571,681
1960 38,192 2,565,530

Data sources: World Bank | Health (1960–2023, retrieved 2026-04-06); U.S. Census Bureau (1960–2023, retrieved 2026-02-08).

GeoRank.org/birth-rate/sierra-leone/united-states | CC BY

The chart above illustrates the comparison of the absolute yearly changes in population resulting from births and deaths.

Excluding migration, the natural population change due to births and deaths from 2022 to 2023 was +2.23% in Sierra Leone and +0.15% in the United States.

For the past 10 years, the annual natural population change has been +2.31% in Sierra Leone and +0.25% in the United States.

Birth rate in Sierra Leone vs United States by year

Sierra Leone
United States

Annual births per 1,000 people

1x
Year Annual births per 1,000 people
Sierra Leone United States
2023 30.6 10.7
2022 31.1 11
2021 31.6 11
2020 32.2 10.9
2019 32.8 11.4
2018 33.3 11.6
2017 33.8 11.8
2016 34.2 12.2
2015 34.7 12.4
2014 35.6 12.5
2013 36.6 12.4
2012 37.8 12.6
2011 38.5 12.7
2010 39.1 13
2009 39.9 13.5
2008 40.6 14
2007 41.1 14.3
2006 41.8 14.3
2005 42 14
2004 42.5 14
2003 43.5 14.1
2002 44.3 14
2001 44 14.1
2000 45 14.4
1999 46.1 14.2
1998 46.3 14.3
1997 46.3 14.2
1996 46.5 14.4
1995 46.8 14.6
1994 46.8 15
1993 46.9 15.4
1992 47 15.8
1991 47.5 16.2
1990 45.5 16.7
1989 46.3 16.4
1988 46.4 16
1987 46.6 15.7
1986 46.6 15.6
1985 46.7 15.8
1984 46.8 15.6
1983 46.7 15.6
1982 46.8 15.9
1981 46.8 15.8
1980 46.8 15.9
1979 47 15.6
1978 47.2 15
1977 47.1 15.1
1976 47.2 14.6
1975 47.3 14.6
1974 47.4 14.8
1973 47.2 14.8
1972 47.2 15.6
1971 47.3 17.2
1970 47.4 18.4
1969 47.5 17.9
1968 47.7 17.6
1967 47.9 17.8
1966 48 18.4
1965 48 19.4
1964 48.2 21.1
1963 48.2 21.7
1962 48.1 22.4
1961 48.1 23.3
1960 48 23.7

Data sources: World Bank | Health (1960–2023, retrieved 2026-04-06).

GeoRank.org/birth-rate/sierra-leone/united-states | CC BY

The latest reported birth rate per 1,000 people in 2023 was 30.6 in Sierra Leone and 10.7 in the United States, compared with 48 and 23.7, respectively, in 1960.

Birth rate data compared

Sierra Leone United States
Fertility rate 3.79 1.62
Fertility rate rank 35/196 125/196
Birth rate 30.6 10.7
Birth rate rank 29/196 140/196
Population change due to births and deaths +188,788 +502,372
Natural population change rank 62/196 37/196
Natural population change rate +2.23% +0.15%
Population growth +2.15% +0.49%
Population growth rank 47/197 134/197
Age at first childbirth 19.6 years 27.3 years
Average age at childbearing 28.5 years 30.2 years
Annual births per 1,000 women ages 15-19 87.7 11.3
Annual births per 1,000 women ages 20-29 169.3 72.5
Annual births per 1,000 women ages 30+ 53.4 17.4
Female of reproductive age (15-49), share of population 25.4% 22.5%
Any modern method of contraceptive prevalence among married women ages 15-49 20.9% 66.1%
Share of births attended by skilled health staff 86.9% 99.1%
Maternal mortality per live birth 0.35% 0.02%
Neonatal mortality rate (before reaching 28 days of age) 2.93% 0.34%
Infant mortality rate (before reaching 1 year of age) 5.62% 0.55%
Mortality rate before reaching 5 years of age 9.43% 0.65%
Life expectancy 62.3 years 79.8 years

Children 0-14 years as share of population

Sierra Leone
Factual

UN forecast
United States
Factual

UN forecast
1x
Year Young
Sierra Leone United States
2100 19% 14.4%
2099 19% 14.4%
2098 19.1% 14.4%
2097 19.2% 14.4%
2096 19.3% 14.4%
2095 19.5% 14.5%
2094 19.6% 14.5%
2093 19.7% 14.5%
2092 19.8% 14.5%
2091 19.9% 14.6%
2090 20% 14.6%
2089 20.1% 14.7%
2088 20.3% 14.7%
2087 20.4% 14.7%
2086 20.5% 14.8%
2085 20.7% 14.8%
2084 20.8% 14.8%
2083 20.9% 14.9%
2082 21.1% 14.9%
2081 21.2% 14.9%
2080 21.4% 14.9%
2079 21.6% 14.9%
2078 21.7% 14.9%
2077 21.9% 14.9%
2076 22.1% 14.9%
2075 22.2% 14.9%
2074 22.4% 14.9%
2073 22.6% 14.9%
2072 22.8% 14.9%
2071 23% 14.9%
2070 23.2% 14.9%
2069 23.4% 14.9%
2068 23.6% 14.9%
2067 23.8% 14.9%
2066 24% 14.9%
2065 24.3% 15%
2064 24.5% 15%
2063 24.7% 15%
2062 25% 15.1%
2061 25.2% 15.1%
2060 25.5% 15.2%
2059 25.7% 15.3%
2058 26% 15.4%
2057 26.3% 15.5%
2056 26.6% 15.5%
2055 26.9% 15.6%
2054 27.1% 15.7%
2053 27.4% 15.8%
2052 27.7% 15.8%
2051 28.1% 15.9%
2050 28.4% 15.9%
2049 28.7% 16%
2048 29% 16%
2047 29.3% 16%
2046 29.7% 16%
2045 30% 16%
2044 30.3% 16%
2043 30.7% 16%
2042 31.1% 16%
2041 31.4% 15.9%
2040 31.8% 15.9%
2039 32.2% 15.9%
2038 32.6% 15.9%
2037 33% 15.9%
2036 33.4% 15.9%
2035 33.8% 15.9%
2034 34.2% 15.9%
2033 34.6% 16%
2032 35% 16.1%
2031 35.4% 16.2%
2030 35.7% 16.3%
2029 36.1% 16.5%
2028 36.5% 16.6%
2027 37% 16.8%
2026 37.4% 17%
2025 37.9% 17.2%
2024 38.1% 17.3%
2023 38.5% 17.6%
2022 39% 17.9%
2021 39.4% 18.1%
2020 39.8% 18.4%
2019 40.2% 18.6%
2018 40.6% 18.8%
2017 41% 18.9%
2016 41.4% 19.1%
2015 41.8% 19.2%
2014 42.2% 19.3%
2013 42.5% 19.4%
2012 42.8% 19.5%
2011 43% 19.6%
2010 43.2% 19.7%
2009 43.4% 19.8%
2008 43.5% 19.9%
2007 43.6% 20%
2006 43.7% 20.2%
2005 43.8% 20.3%
2004 43.9% 20.5%
2003 43.9% 20.7%
2002 43.9% 20.9%
2001 43.9% 21%
2000 43.8% 21.2%
1999 43.7% 21.3%
1998 43.6% 21.4%
1997 43.5% 21.5%
1996 43.5% 21.7%
1995 43.4% 21.8%
1994 43.3% 21.9%
1993 43.2% 21.9%
1992 43.1% 21.8%
1991 43% 21.7%
1990 42.9% 21.6%
1989 42.9% 21.5%
1988 42.8% 21.3%
1987 42.7% 21.3%
1986 42.6% 21.3%
1985 42.5% 21.5%
1984 42.3% 21.7%
1983 42.2% 21.8%
1982 42.1% 22%
1981 42% 22.1%
1980 41.9% 22.4%
1979 41.8% 22.8%
1978 41.7% 23.2%
1977 41.6% 23.8%
1976 41.4% 24.4%
1975 41.3% 25.2%
1974 41.1% 25.9%
1973 40.9% 26.6%
1972 40.7% 27.4%
1971 40.6% 28%
1970 40.3% 28.6%
1969 40.1% 29%
1968 39.9% 29.5%
1967 39.6% 30%
1966 39.4% 30.4%
1965 39.1% 30.7%
1964 38.8% 30.9%
1963 38.5% 31.1%
1962 38.3% 31.3%
1961 38.3% 31.4%
1960 38.2% 31.3%

Data sources: World Bank | Health (1960–2024, retrieved 2026-04-06); United Nations | World Population Prospects (2025–2100, retrieved 2026-03-10); U.S. Census Bureau (1960–2024, retrieved 2026-02-08).

GeoRank.org/birth-rate/sierra-leone/united-states | CC BY

Children aged 0-14 make up 38.1% of the population in Sierra Leone and 17.3% in the United States in 2024, compared to 42.9% and 21.6% respectively in 1990.

Demographics of Sierra Leone and the United States compared.

Fertility rates around the globe

1x

Data sources: World Bank | Health (1960–2023, retrieved 2026-04-06).

GeoRank.org/birth-rate/sierra-leone/united-states | CC BY

Maternal mortality chart: Sierra Leone vs United States

Sierra Leone
United States
1x
Year Maternal mortality per 100K births
Sierra Leone United States
2023 354 17
2022 370 20
2021 403 31
2020 422 22
2019 464 18
2018 491 18
2017 578 18
2016 633 18
2015 730 17
2014 821 17
2013 842 16
2012 915 16
2011 967 15
2010 1,018 15
2009 1,054 15
2008 1,093 14
2007 1,132 13
2006 1,168 13
2005 1,294 13
2004 1,366 13
2003 1,433 13
2002 1,492 13
2001 1,518 13
2000 1,603 12
1999 1,731 12
1998 1,753 11
1997 1,721 11
1996 1,726 11
1995 1,777 12
1994 1,755 11
1993 1,696 12
1992 1,681 11
1991 1,699 12
1990 1,572 12
1989 1,575 12
1988 1,549 12
1987 1,533 11
1986 1,530 11
1985 1,506 11

Data sources: World Bank | Gender (1985–2023, retrieved 2026-04-06).

GeoRank.org/birth-rate/sierra-leone/united-states | CC BY

The maternal mortality rate, which is the probability of dying during childbirth or within 42 days of pregnancy termination, is 354 deaths per 100,000 live births in Sierra Leone, compared to 17 deaths in the United States.

U.S. figures are less comparable to other countries, because reporting changes between 2003 and 2018 doubled the number of maternal deaths captured in official records without an actual doubling in mortality, and coding was revised again in 2018.

Under-five mortality rates

Sierra Leone
United States

Probability that a newborn baby will die before reaching age five

1x
Year Under 5 mortality rate
Sierra Leone United States
2023 9.43% 0.65%
2022 9.77% 0.65%
2021 10.1% 0.65%
2020 10.5% 0.65%
2019 10.9% 0.65%
2018 11.3% 0.65%
2017 11.8% 0.66%
2016 12.3% 0.67%
2015 13.8% 0.68%
2014 13.7% 0.68%
2013 13.9% 0.69%
2012 14.5% 0.7%
2011 15.2% 0.72%
2010 15.9% 0.73%
2009 16.6% 0.75%
2008 17.3% 0.76%
2007 18.1% 0.77%
2006 18.8% 0.79%
2005 19.4% 0.8%
2004 20.1% 0.81%
2003 20.7% 0.81%
2002 21.3% 0.82%
2001 21.8% 0.83%
2000 22.4% 0.84%
1999 22.9% 0.86%
1998 23.4% 0.87%
1997 23.9% 0.89%
1996 24.3% 0.92%
1995 24.7% 0.95%
1994 25% 0.98%
1993 25.3% 1.01%
1992 25.5% 1.05%
1991 25.7% 1.09%
1990 25.9% 1.12%
1989 26.2% 1.16%
1988 26.4% 1.19%
1987 26.6% 1.21%
1986 26.9% 1.24%
1985 27.2% 1.27%
1984 27.5% 1.3%
1983 27.8% 1.34%
1982 28.1% 1.39%
1981 28.5% 1.44%
1980 28.9% 1.5%
1979 29.2% 1.56%
1978 29.6% 1.63%
1977 30% 1.71%
1976 30.5% 1.79%
1975 30.9% 1.88%
1974 31.4% 1.97%
1973 31.9% 2.06%
1972 32.3% 2.15%
1971 32.9% 2.24%
1970 33.4% 2.32%
1969 33.9% 2.41%
1968 34.5% 2.49%
1967 35% 2.57%
1966 35.6% 2.64%
1965 36.2% 2.71%
1964 36.8% 2.77%
1963 37.4% 2.83%
1962 38% 2.89%
1961 38.5% 2.95%
1960 39.1% 3.01%

Data sources: World Bank | Health (1960–2023, retrieved 2026-04-06).

GeoRank.org/birth-rate/sierra-leone/united-states | CC BY

The chance that a newborn baby will die before reaching age five is 9.43% in Sierra Leone and 0.65% in the United States. Above is a chart with historical data on under-five mortality rates.

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Data sources:

  1. World Bank | Health (1960–2024, retrieved 2026-04-06)
  2. United Nations | World Population Prospects (2025–2100, retrieved 2026-03-10)
  3. U.S. Census Bureau (1960–2025, retrieved 2026-02-08)
  4. United Nations Economic Commission for Europe (UNECE) (2021, retrieved 2026-03-10)
  5. Central Intelligence Agency (CIA) (2025, retrieved 2026-02-20)

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